Above CPUz screenshots of the G.Skill TridentX memory running at 2400mhz. The SPD information shows a maximum rated speed of 1143mhz (2286mhz effective), at 10-13-13-33 timings, although G.Skill are clearly pushing it much higher than these specifications.

We tried to manually select a 2666mhz memory setting, but the system wouldn’t post, even when we loosened the timings to 12-12-12-40. We also tried to overclock the memory by increasing the BCLK. We had a little more success this way….

We managed to push the memory to 2520mhz at the same 10-12-12-31 timings. Any higher and we would run into stability problems. It was also possible to increase this to 2600mhz, but the timings had to relaxed to 12-12-12 which negated any performance improvements.

You can check system validation at 2520mhz with timings of 10-12-12-31, over here.